how to fix the P0562 code on my Tesla Model S Plaid/Refresh (2021-present)

Learn how to diagnose and fix P0562 low voltage issue in Tesla Model S Plaid. Step-by-step guide with diagnostic procedures and repair instructions.

Solution

1. Preparation

• Gather tools: OBD-II scanner, multimeter, socket set, and any necessary replacement parts.
• Ensure the vehicle is parked in a safe area with the ignition off.
• Disconnect the negative terminal of the 12V battery to prevent electrical shorts.

2. Inspect High-Voltage Battery Connections

• Remove the cover or access panel for the high-voltage battery.
• Visually inspect all connections for signs of corrosion or looseness.
• Tighten any loose connections and clean corrosion using a wire brush and electrical cleaner.

3. Check the 12V Auxiliary Battery

• Reconnect the negative terminal of the 12V battery.
• Use a multimeter to measure the voltage of the 12V battery; it should read between 12.4V and 12.8V when fully charged.
• If the voltage is below 12.4V, replace the battery.

4. Test the Charging System

• With the vehicle in "Ready" mode, use the OBD-II scanner to monitor the charging system's performance.
• Check for any discrepancies in charging voltage and current.
• If the charging system is malfunctioning, consult the service manual for further diagnostics or component replacement.

5. Clear Fault Codes

• After completing repairs, use the OBD-II scanner to clear the P0562 code from the vehicle's memory.
• Monitor the vehicle's performance in subsequent tests to ensure the issue does not return.